<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>使用resize拉伸分栏</title>
  <link rel="stylesheet" href="./index.css">
</head>
<body>
  <div class="bruce flex-ct-x">
    <div class="stretching-column">
      <div class="stretching-column__top">aaaaaaaaaaa</div>
      <div class="left">
        <div class="resize-bar"></div>
        <div class="resize-line"></div>
        <div class="resize-text">ABCDEFGHIJKLMNOPQRSTUVWXYZ</div>                                            
      </div>
      <div class="right">ABCDEFGHIJKLMNOPQRSTUVWXYZ</div>
    </div>
  </div>
</body>
</html>